AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-521-9590 (015219590) |
| NCB Code | USA (01) |
| Manufacturer | Alcoa Global Fasteners Inc, Sps Technologies Inc, West Coast Aerospace Inc, Twist Tite Mfg Inc, Boeing Company The, Fastener Innovation Technology Inc, Hi Shear Corporation, Lisi Aerospace Canada Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| HT4027-3-18 | alcoa global fasteners inc | screw close tolerance | RFQ |
| HT4027-3-18 | sps technologies inc | screw close tolerance | RFQ |
| ST3M557-3-18 | west coast aerospace inc | screw close tolerance | RFQ |
| ST3M557-3-18 | twist tite mfg inc | screw close tolerance | RFQ |
| ST3M557-3-18 | alcoa global fasteners inc | screw close tolerance | RFQ |
| ST3M557-3-18 | boeing company the | screw close tolerance | RFQ |
| ST3M557-3-18 | sps technologies inc | screw close tolerance | RFQ |
| ST3M557-3-18 | fastener innovation technology inc | screw close tolerance | RFQ |
| ST3M557 | boeing company the | screw close tolerance | RFQ |
| ST3M557-3-18 | hi shear corporation | screw close tolerance | RFQ |
| ST3M557-3-18 | lisi aerospace canada corp | screw close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.313 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.531 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.293 INCHES MINIMUM AND 0.301 INCHES MAXIMUM |
| AAUJ | SPLINE MAJOR DIAMETER | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
| AAUR | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | TORX |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| ANEE | GRIP LENGTH | 1.125 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES NOMINAL AND 101.0 DEGREES MAXIMUM |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,100 DEGREE REDUCED HEAD,GEARDRIVE RECESS-SPECIAL THREAD LENGTH INCONCEL 718 (125 KSI SHEAR) |
| MATT | MATERIAL | NICKEL ALLOY 718 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BPS-F-69 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-521-9590, 5305015219590 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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